Hi ,
Could anyone help with a couple of GM part numbers ?
In particular the No. for an original 2600s Head but also interested
in the number for the LC GTR 2 Barrell manifold and stromberg carb.
Thanks
David
2600S Head Part Number?
Started by
_VerdoroGTR_
, Jan 31 2006 09:16 AM
11 replies to this topic
#2
_gm3300_
_gm3300_
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Posted 31 January 2006 - 10:08 AM
firstly the carby details as the head info takes a bit of explaining.
On the top cover of the carb you will find a number stamped which should be
23-3041. The 23 is the code for Holden, and the 3041 is the application, LC GTR
161S 69/71 WW Stromberg Carb. The other number is, the single digit is the year
and the two digit number is week of manufacture.
The head part number info can be confusing because the number that is cast into it is not necessarily its replacement part number. For example an LC XU1 head replacement part number is 2820105, this number is not what is cast into the top of the head which is 2815843.
The same situation applies to most of the other red six heads, a common casting is used for different applications, when the head is complete with its correct valves, springs etc it would be packed in its appropriate replacement part box with its replacement part number.
With this in mind, the casting number for the 2600S is 7438296, this is the number on a late 70 car so its possible that earlier cars had a different casting number. Could you post up your numbers as i'm looking to set up a list of head casting numbers, if anyone else has numbers to add let me know
grant
On the top cover of the carb you will find a number stamped which should be
23-3041. The 23 is the code for Holden, and the 3041 is the application, LC GTR
161S 69/71 WW Stromberg Carb. The other number is, the single digit is the year
and the two digit number is week of manufacture.
The head part number info can be confusing because the number that is cast into it is not necessarily its replacement part number. For example an LC XU1 head replacement part number is 2820105, this number is not what is cast into the top of the head which is 2815843.
The same situation applies to most of the other red six heads, a common casting is used for different applications, when the head is complete with its correct valves, springs etc it would be packed in its appropriate replacement part box with its replacement part number.
With this in mind, the casting number for the 2600S is 7438296, this is the number on a late 70 car so its possible that earlier cars had a different casting number. Could you post up your numbers as i'm looking to set up a list of head casting numbers, if anyone else has numbers to add let me know
grant
#3
_VerdoroGTR_
_VerdoroGTR_
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Posted 31 January 2006 - 09:42 PM
Thanks gm3300,
Although I have not got my hads on a 2600S block as yet I thought I
should be armed with the correct casting number for an original head so
I can check every red 6 head I find. Same goes for the carbie and manifold, I have
seen a few 2 barrell carbies and manifolds around but wanted to try and get
one with right numbers if possible.
Why do people delight in removing factory bit's and replacing them with
what ever bodgie stuff they have lying around
???
The search goes on
Although I have not got my hads on a 2600S block as yet I thought I
should be armed with the correct casting number for an original head so
I can check every red 6 head I find. Same goes for the carbie and manifold, I have
seen a few 2 barrell carbies and manifolds around but wanted to try and get
one with right numbers if possible.
Why do people delight in removing factory bit's and replacing them with
what ever bodgie stuff they have lying around
???The search goes on
#4
2600s
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Posted 01 February 2006 - 01:11 PM
Ok these are the numbers for my 2600s engine in my 11/70 LC GTR;
Engine No: 2600s26566
Head: 7436296 K150 7H
Carb 233041 9 47 M905 ??
Hope this helps
"Cheers"
2600s
Engine No: 2600s26566
Head: 7436296 K150 7H
Carb 233041 9 47 M905 ??
Hope this helps
"Cheers"
2600s
#5
_VerdoroGTR_
_VerdoroGTR_
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Posted 01 February 2006 - 01:32 PM
Thanks 2600S,
All info is appreciated, I notice your head number is slightly different to
the one quoted by gm3300 but as he says this may be a difference in year
model . The Carbie number seems to agree though. If it is not too much of
a pain next time your under the hood I woudn't mind finding what number they have on the manifold as well.
David
All info is appreciated, I notice your head number is slightly different to
the one quoted by gm3300 but as he says this may be a difference in year
model . The Carbie number seems to agree though. If it is not too much of
a pain next time your under the hood I woudn't mind finding what number they have on the manifold as well.
David
#6
2600s
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Posted 01 February 2006 - 01:36 PM
No Probs will look hopefully tonight!
"Cheers"
2600s
Alf
"Cheers"
2600s
Alf
#7
2600s
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Posted 01 February 2006 - 08:01 PM
Ok I did get the head number wrong as the cork rocker cover gasket was making the 8 look like a 6! 
The manifold number is 7434446-P further down the manifol the numbers 114 and Holden appear.
Hope this helps you out!
"Cheers"
Alf
The manifold number is 7434446-P further down the manifol the numbers 114 and Holden appear.
Hope this helps you out!
"Cheers"
Alf
#8
_VerdoroGTR_
_VerdoroGTR_
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Posted 01 February 2006 - 08:48 PM
Hi 2600s ,
Thanks for the extra trouble , Now thanks to yourself
and gm3300 I can go hunting for my missing bits armed
with the right numbers .
Regards
David (VerdoroGTR)
Thanks for the extra trouble , Now thanks to yourself
and gm3300 I can go hunting for my missing bits armed
with the right numbers .
Regards
David (VerdoroGTR)
#9
lakeside
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Posted 01 February 2006 - 10:02 PM
my head and manifold numbers are wrong to the parts book. I know of another 2600s with the same head number as my one
#10
_gm3300_
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Posted 03 February 2006 - 05:16 PM
it's common for the parts book number not to match the casting number, the parts book number is a complete head with valves, springs etc to suit a particular application. There is a second listing for a bare head, but even this number is for a head which has been machined to suit a particular application. The good thing is that its possible to find a head with the right casting number on another model. For example the 2600S head(bare) is listed as the same as the 2250H engine, i've got one at home i'll check it's number tonight.
The carb is for LC 161S 69/70 and was made in the 47th week of 1969. Although this seems a long way of the cars production date, it's possible it's a spare part, or it was in a batch that was put aside, and other carbs were supplied and used before this lot. The carb on my 6/72 GTR is coded 1-37 so it's nearly a year from the cars build date, these things happen with production items.
hope this helps
grant
The numbers are correct, the K150 is the date code for the head casting which is K(October) 15 (day of the month) 0 (1970). Remember "I" is not used because it can be confused with "1".Head: 7438296 K150 7H
Carb 233041 9 47
The carb is for LC 161S 69/70 and was made in the 47th week of 1969. Although this seems a long way of the cars production date, it's possible it's a spare part, or it was in a batch that was put aside, and other carbs were supplied and used before this lot. The carb on my 6/72 GTR is coded 1-37 so it's nearly a year from the cars build date, these things happen with production items.
hope this helps
grant
#11
_gm3300_
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Posted 03 February 2006 - 08:57 PM
Ok i've been out to the shed (with all the crawly, bitey things that don't like being woken up at this time of night!!) and checked the number on the head i took off the parts car (3/70 2250 SL). It has the same casting number as a 2600S head,
7438296 and cast date B100, or Feb 10th 1970, so there is another option if your looking for the right number. The date code seems to tie in with 2600s's car in being cast around a month before the car was built, but bear in mind this may not always be the case.
grant
7438296 and cast date B100, or Feb 10th 1970, so there is another option if your looking for the right number. The date code seems to tie in with 2600s's car in being cast around a month before the car was built, but bear in mind this may not always be the case.
grant
#12
lakeside
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Posted 03 February 2006 - 09:52 PM
thats the number my 2600 has on the head. The inlet manifold is a different cast number to the book also.7438296 and cast date B100, or Feb 10th 1970, so there is another option if your looking for the right number. The date code seems to tie in with 2600s's car in being cast around a month before the car was built, but bear in mind this may not always be the case.
grant
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